CVE-2021-3606: openvpn Uncontrolled Search Path Element
CVSS: 7.8v3.1HighModified
Published 02-07-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-3606 is a high (CVSS 7.8) Uncontrolled Search Path Element vulnerability in openvpn. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.5% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-07-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 4.4Preferred score · NVD (NIST)
AV:L/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
27%
Versus all other CVEs
30-day change
0.00 pp
From 0.34% on 20-09-2026
20-09-202620-10-2026
EPSS score0.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Openvpn1 product
- openvpn< 2.5.3
1 vendor · 1 product